James Turton created DRILL-8372:
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Summary: Unfreed buffers when running a LIMIT 0 query over
delimited text
Key: DRILL-8372
URL: https://issues.apache.org/jira/browse/DRILL-8372
Project: Apache Drill
Issue Type: Bug
Components: Storage - Text & CSV
Affects Versions: 2.0.0
Reporter: James Turton
Assignee: James Turton
Fix For: 2.0.0
With the following data layout
{code:java}
/tmp/foo/bar:
large_csv.csvh
/tmp/foo/boo:
large_csv.csvh
{code}
a LIMIT 0 query over it results in unfreed buffer errors.
{code:java}
apache drill (dfs.tmp)> select * from `foo` limit 0;
Error: SYSTEM ERROR: IllegalStateException: Allocator[op:0:0:4:EasySubScan]
closed with outstanding buffers allocated (3).
Allocator(op:0:0:4:EasySubScan) 1000000/299008/3182592/10000000000
(res/actual/peak/limit)
child allocators: 0
ledgers: 3
ledger[113] allocator: op:0:0:4:EasySubScan), isOwning: true, size: 262144,
references: 1, life: 277785186322881..0, allocatorManager: [109, life:
277785186258906..0] holds 1 buffers.
DrillBuf[142], udle: [110 0..262144]
ledger[114] allocator: op:0:0:4:EasySubScan), isOwning: true, size: 32768,
references: 1, life: 277785186463824..0, allocatorManager: [110, life:
277785186414654..0] holds 1 buffers.
DrillBuf[143], udle: [111 0..32768]
ledger[112] allocator: op:0:0:4:EasySubScan), isOwning: true, size: 4096,
references: 1, life: 277785186046095..0, allocatorManager: [108, life:
277785185921147..0] holds 1 buffers.
DrillBuf[141], udle: [109 0..4096]
reservations: 0 {code}
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